Vulnerability Description
SurrealDB before 3.1.0 evaluates user-supplied WHERE clauses in SELECT statements (and SET/MERGE/CONTENT/PATCH clauses in UPDATE, UPSERT, INSERT ON DUPLICATE KEY UPDATE, and RELATE update-variant statements) against full record data before enforcing PERMISSIONS FOR SELECT WHERE restrictions. An authenticated user — including Record and Scope users — can exploit this ordering flaw to read the full contents of any table in the database they are authenticated against, bypassing table-level permission checks. Exfiltration is most direct when scripting functions are enabled (--allow-scripting), but is also possible via SurrealQL's THROW statement and timing-based side channels without scripting. The vulnerability is confined to the attacker's current database and does not cross namespace or database isolation boundaries.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Surrealdb | Surrealdb | < 3.1.0 |
Related Weaknesses (CWE)
References
- https://github.com/surrealdb/surrealdb/security/advisories/GHSA-98fx-66cf-fc7cVendor AdvisoryMitigation
- https://www.vulncheck.com/advisories/surrealdb-before-permission-bypass-via-wherThird Party Advisory
FAQ
What is CVE-2026-63755?
CVE-2026-63755 is a vulnerability with a CVSS score of 6.5 (MEDIUM). SurrealDB before 3.1.0 evaluates user-supplied WHERE clauses in SELECT statements (and SET/MERGE/CONTENT/PATCH clauses in UPDATE, UPSERT, INSERT ON DUPLICATE KEY UPDATE, and RELATE update-variant stat...
How severe is CVE-2026-63755?
CVE-2026-63755 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63755?
Check the references section above for vendor advisories and patch information. Affected products include: Surrealdb Surrealdb.